Strip cutting and applying machine



Jan. 18, 1938. FRlEs 2,105,726

STRIP CUTTING AND APPLYING MACHINE Filed July'22, 1936 6 Sheets-Sheet l'llll INVENTOR. West-or /'rLe P6; 2%. AAA

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Jan. 18, 1938. N. FRIES STRIP CUTTING AND APPLYING MACHINE Filed July22, 1936 6 Sheets-Sheet 2 INVENTOR.

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A TTORNEY Jan. 18, 1938. N. FRIES STRIP CUTTING AND APPLYING MACHINEFiled July 22, 1936 I 6 Sheets-Sheet 3 m p m m E O VJMW N I H A T vs .vw w mm W m Mm v.. B m .3 U, WWI

Jan. 18, 1938. N. FRIES STRIP CUTTING AND APPLYING MACHINE 6Sheets-Sheet 4 Filed July 22, 1936 A TTORNEYS.

Jan. 18, 1938. N. FRIES STRIP CUTTING AND APPLYING MACHINE Filed July22, less 6 Sheets-Sheet s Jan. 18, 1938. N. FRIES STRIP CUTTING ANDAPPLYING MACHINE Filed July 22, 1936 6 Sheets-Sheet 6 INVENTOR. friesNesl'o-r ZYM 201.2%

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Patented Jan. 18, 1938 UNITED STATES STRIP CUTTING AND APPLYING MACHINENestor Fries, Fort Wayne, Ind., assignor to Flashfold Box Corporation,Fort Wayne, Ind.

Application July 22, 1936, Serial No. 91,902

3 Claims.

The invention relates to machines for forming strips and applying thesame to various articles. The present embodiment of the invention isparticularly directed to the forming of paper or paper board strips andto the securing of the same to paper board articles, such as foldingboxes. In certain types of folding boxes, such as the type described inLetters Patent No. 1,699,008, the wall sections and integral cornersections are locked in set-up condition by folding an extending flap oneach of two opposite wall sections, over the inwardly collapsed adjacentcorner sections and engaging the horizontal edge of the flap behind astrip that is secured to the bottom section of the box or by engagingthe free edge of a second fiap that may be carried by the first flap,the second flap contacting the bottom of the box.

Heretofore the strips have been secured by hand to the bottom section ofthe box blank or to the top section of the box blank at considerablecost in time and money and the object of my invention is to provide amachine that will form the strip and secure it to the box blank in ahighly eflicient manner and with a large saving in labor and time. Otherobjects and advantages of the invention will appear hereinafter.

The invention consists in a machine having novel means by which thematerial to be treated is fed through the machine, novel means forapplying an adhesive to a ribbon or tape of strip forming material andmeans to cut strips from the ribbon and apply them to the material to betreated.

The invention is illustrated in the accompanying drawings in whichFigure 1 is a plan view of a machine embodying the invention.

Fig. 2 is a side elevation of the machine.

Fig. 3 is a cross section on line 33 of Fig. 1.

Fig. 4 is a plan view of a fraction of one of the conveyor belts, andFig. 5 is a side view of the same.

Fig. 6 is. an elevational view of the conveyor driving ratchet.

Fig. 7 is an enlarged cross section on line 'I-'I of Fig. 6.

Fig. 8 is an end elevation of the conveyor driving ratchet.

Fig. 9 is a plan view of the adhesive applying mechanism.

Fig. 10 is a side elevation of said latter mechanism.

Fig. 11 is a cross section on line IIII of Fig. 9.

Fig. 12 is a plan view of the lower roller of the adhesive applyingmechanism.

Fig. 13 is a side elevation of the ribbon feeding mechanism.

Fig. 14 is a side elevation of the operating means of the lattermechanism.

Fig. 15 is an elevation of one of the brakes.

Fig. 16 is a plan view of a box blank having the strips applied theretoand Fig. 1'7 is a cross section on line I'II'I of Fig. 16, the blankbeing in folded condition.

Referring to the illustrative embodiment of the invention I representsthe main frame of the machine which is suitably supported on the flooror other structure. The machine contains two strip cutting and applyingmechanisms. As they are duplicates, only one of them will be described.A head 2 is suitably mounted on the frame I and supports a shaft 3having the gears 4 and 5 splined thereto. The gear 4 meshes with a gear6 splined on a shaft I and the gear 5 meshes with a gear 8 on the shaft9. A clutch I8 connects the shaft I to the shaft I I, the shaft I Ihaving a pulley I2 thereon that is driven from any suitable powersupply. A plunger I3 is vertically slidably mounted on the head 2 and aneccentric strap I4 is pivotally connected to the plunger and engages aneccentric I5 mounted on the shaft 3 by the rotation of which shaft theplunger is caused to reciprocate. At opposite sides of the plunger andreciprocably supported on the frame I are two rods I 6 that areconnected at their upper ends by the cross bar I'I, their lower endsbeing connected to a die I8. A cam I9 on the shaft "I engages the crossbar I1 and causes the die I8 to descend. A tension plate 20, Figs. 9,10, 11, is supported in a recess formed in the lower forward edge of thedie and it projects below the bottom face of the die and is adapted tocontact and hold the material to be treated on the table or top of themain frame as hereafter described. The

- plunger I3 carries a knife ZI (Figs. 9, 11) which,

when said plunger descends, passes through a slot or recess 22 formed inthe die I8.

The cam I9 is so formed and positioned that it causes the die I8 todescend prior to the descent of the knife. The die retracts with theknife until the low side of the cam I9 stops it, the knife continuingits upper movement to its uppermost position as controlled by itsdriving mechanism.

A glue applying mechanism is attached to the die I8 and comprises areceptacle or reservoir 23 (Figs. 9 and 11) having a plate 24 partlycovering the open top of the same. A roller 25, (Fig. 11), is revolublymounted in the receptacle 23,

and a series of grooves 26 is formed in the peripheral surface of theroller. Glue or other adhesive is inserted in the receptacle at theopening 2'! and the roller 25 is turned in the adhesive, the materialbeing carried up in the grooves 26. A scraper blade 28 is adapted tobear on the roller 25 and is mounted on a shaft 29 that extends acrossthe reservoir, and a lever 30 is attached to the shaft by which theshaft may be turned to adjust the blade relatively to the roller.Generally the blade is adjusted to scrape the adhesive from the surfaceof the ribs 3! on the roller, the adhesive in the grooves being appliedto the material being treated. The gr'oc'u'fes are or such" depth aswill hold the desired amount of adhesive to be applied. I i

The roller 32 is supported by the frame 33 that is pivotally mounted ontheprojecticns 34 bf the opposite side walls of the receptacle by thestuds 35. Two plungers 36, opposed by thesprings 31, are mounted in theframe 33 and are adopted to abut the plate 24. A cam shaft 36 engagesthe upper side'of the frame 33 and'is supported in the brackets 39 thatare mounted on the studs 35 and attached by thescrews 46 to thereceptacle.

- tilt n the pivots 35 andraise the upper roller for stopping thefeeding of the ribbon or tape 42. The plungers 36 normally hold theroller 32 in contact with the roller 25.

Two channels 43 are mounted on opposite sides of the receptacle andproject rearwardly therefrom. These channels serve as guides for theribbon or tape 42 formed of suitable material such as paper board ofselected weight. The tape is in a roll 44 revolubly mounted at one endof the main frame and it passes between the rollers 25, 32 and through aslot 45 in the forward end wall of the receptacle 23 and through aV-shaped slot 46 in the die iii. The free end of the tape extends acrossthe slot 22 in the die I 6 and under the knife 2|. A suitable-number ofspring opposed pawls 41 is mounted in recesses formed in the die H3. Thepawls project into the slot 22 beneath the tape and, when the descendingknife severs a strip from the tape, hold the strip in horizontalposition as the knife carries the strip through and out of the slot 22and presses it onto the object below the die 3, that is being treated.

A hand wheel 48 is attached to the shaft of the roller 32 by which torotate the rollers for initially drawing the tape 42 between therollers. A gear 49 is attached to the opposite end of the shaft of theroller 32 and meshes with a gear 56 attached to the shaft of the roller25. A ratchet wheel is also attached to the shaft of the roller 32 andis adapted to be intermittently'rotated by a dog 52 (Fig. 14) mounted onthe head 2. A stop 53 engages the ratchet wheel to prevent overrunningand to lock the wheel against reverse movement. 5| to rotate on theupward movement of the reservoir.

A guard 45' protects the slot 45 from the adhesive material. The bolts54, (Fig. 9), are pivo ally connected to the die 8 in the slots .55therein,

the receptacle 23 having the slots 56 in the lateral projections 51thereon to receive the bolts. When the nuts on the bolts are tightenedagainst the projections 51 the receptacle is rigidly attached to the dieI8 and hence reciprocates withit.

Two pairs of wheels 6|], 6| are revolubly mounted on opposite sides ofthe main frame respectively. Pins 62 project at selected intervalsfrom-'the The dog 52 causes the wheelperipheries of the Wheels 66 andare adapted to engage in the aperture 63 formed in the belts 64 that areengaged on the wheels 60, 6|. Openings 65 are formed at selectedintervals in each belt and a spring stop 66 is secured on the underside5 "mountedon the rod '12 so that lateral adjustment of the 'rodsmay'beaccomplished to accommodate The rods 69 are also 15 various sizes ofmaterial. adjustable on the rods 16. The Wheels 66, 6|

may also be adjusted on their respective shafts in accordance with thesize of the material.

A ratchet wheel 73 is mounted on the shaft 14 The rear ends of the rods16 are slidwhich supports the wheels 60 and an arm is pivotallyconnected to the shaft and carries a pawl 16. A rod H is pivoted tothearm 15 and to a crank 18 connected to the shaft 1. The rotation of theshaft l causes the rod TI to rock the arm '55, the downward movement ofthe arm causing the pawl '76 to turn the ratchet l3 and the shaft thedistance of one tooth. The ratchet l3 is'preferably adjustablydetachably mounted on a gear '19 that is fixed on the shaft 14. A

pinion '89 mounted on the ratchet engages the l'ill teeth of the gearand the ratchet when released from the gear may be adjusted by rotationon the gear. The intermittent rotation of the shaft 14 causes the wheels69 to drive the belts 64 intermittently. A brake 8! on the shaft "14prevents overrunning of the same at any rotation. A form of brake isillustrated in Fig.3 in which a shoe 52 is mounted to engage the rim ofthe wheel 66. A cam 83 is adapted to force the shoe against the rim. Acrank 84 is adapted to rotate the cam t and an adustablerod B5 isconnected to the crank and to a crank 86 secured to the shaft 81. Acrank 88 is also secured to the shaft 81 and a rod 89 is connected tothe crank 88 and loosely engages a lever 96 that is pivoted at 9| andens-.5

shaft '96 of the other head 2','which head is a duplicate of the head 2withlike parts, but it isn' turned around 180 degrees so that the dieand knife face the die and knife on the head 2. The head 2' isadjustably mounted on the main frame for. movement toward or from thehead 2, whereby to accommodate the machine to various sizesn of boxblanks. A similar glue applying mechanism 23' and roll of paper boardtape are applied to the head 2'. I

The box blanks which aresimilar to the blank A shown in Fig. 16 withoutthe strips B, are feds-.

consecutively onto the carrier belts between the rods 69 and 16, theguides 98 on the rods 69 and the guides 99 on the rods 76 locating theproper position for the deposit of the blanks. The stops 66 on the beltswhich are in front of the blank en-" gage the edge of the blank andcarry'it in stages to a positionunder the dies IS, the guides" I00causing the blank to center correctly on the base plate or toplfll ofthe main frame.

The several cams and operating parts arecorrectly timed in operation sothat when a blank is carried under the dies 18, those dies with theattached reservoirs descend and their tension plates 20 contact with theblank. The knives then descend, cut off the glued strips B and pressthem glue side down onto the blank. The dies and knives rise and thebelts remove the blank just treated and position the next blank underthe dies and knives. As the die-reservoir units rise the ratchet wheelson the upper rollers of the reservoirs contact the dogs 52 and turn onetooth thereby rotating the rollers and feeding the glued tapes into theslots 22 in the dies. The next descent of the knives cuts off the stripsB which drop onto the pawls in horizontal position so that the knivespush them through the slots in hori- Zontal position into engagementwith the box blank. The stripped blanks may be conveyed from the machinein any convenient manner.

It is thus seen that the box blanks are fed successively under theknives and the tapes are fed at right angles to the path of movement ofthe box blanks, an adhesive being applied to the under side of the tapesas they approach the knives so that the descending knives cut off stripsof the tape and apply two of them to each blank simultaneously.

In Fig. 17, I illustrate a sectional view of a fraction of a box blankin set up condition showing the end wall folded over the collapsedcorners and a flap on said wall engaged behind the strip B.

What I claim is:

1. In a strip cutting and applying machine, a reciprocating die, meansto feed a tape to the die and simultaneously apply an adhesive substanceto one side of the tape, a flexible belt having depressible upstandingstops at selected intervals of its length for engaging material to betreated,

means to drive the belt intermittently for carrying the material intoand from registration with the die and a knife cooperating with the dieand independently reciprocable for cutting a strip from the tape andapplying it to the said material.

2. In a strip cutting and applying machine a reciprocating die, areciprocable knife, a flexible belt to feed material to be treated underthe die, means to feed a tape to the die and under the knife comprisinga container for an adhesive substance, a pair of rollers supported bythe container and adapted to receive and intermittently move the tapebetween them, one of the rollers being rotatable in the adhesive mixtureand having a series of annular grooves in its periphery in which'theadhesive is retained and applied to one side of the moving tape, meansto cause rotation of one of the rollers, the knife being adapted to outa strip from the tape and apply it to the said material, means opposingseparation of the rollers and means to separate the rollers.

3. In a strip cutting and applying machine, a main frame, a head mountedon the frame, a reciprocable plunger on the head, a knife carried by theplunger, a reciprocable die mounted on the main frame and adapted toreceive the knife, means to reciprocate the die in advance of thereciprocation of the plunger, an apertured flexible belt adapted tointermittently travel under the die for carrying material to be treatedto and from the die, a pair of rotatable members supporting the belt, atleast one of said members having pins projecting from its periphery andadapted to engage in certain of the apertures in the belt for drivingthe belt and spring stops mounted at other of said apertures in the beltfor engaging an edge of the said material to cause the material totravel with the belt.

NESTOR FRIES.

